Should you always stitch in the ditch?
Stitching in the ditch between borders helps stabilize the fabric, maintaining straight lines and preventing distortion. If you choose to stitch the ditch, do it as the first step before adding any quilting design in the border or sashing.
Does stitching in the ditch weaken the seam?
To explain: many quilters believe pressing seams open and stitching right in the ditch the needle may come down at exactly the wrong place and cut the threads holding your pieces together. If the threads break, there will be holes in the seam and batting can leak through, ruining the entire project.
What stitches can you do with a walking foot?
The walking foot is engineered for FORWARD MOTION stitches such as straight and zig zag. If the feed dogs move backwards they may cause the fabric to shift, as feed dogs do not move backward as efficiently as they do forward. Think of it this way, your car will drive in reverse, but it is designed to move forward.